桥涵铺装层水泥混凝土薄层修补要首先检查支座和裂缝 ,修补材料应使用补偿收缩的聚合物水泥混凝土和钢纤维聚合物水泥混凝土 ,修补铺装层厚度不小于 5 cm,单层钢筋网 ,与联系
The aim of this paper is to discuss a catchment-wide approach for analysing the sediment regime with respect to reservoir sedimentation, based on the Alpine Sol
随着我国土地产权制度的建设和不断完善,铁路、公路等线路用地的土地登记工作越来越多,而线路用地不同于常规的土地登记,探讨此类用地的土地登记实践,具有重要的现实意义。本文以金温铁路为例,在对铁路用地具有连续性、整体性及地籍调查界址数据形式多样等特点分析的基础上,应用GIS,通过面向对象的编程实现界址点数据精确上图,建立登记发证的图形数据库,并应用其制图功能和丰富的空间分析与统计分析功能,制定出金华-温
Through synthetic researches of multi-index geological records of Niya section, which are of high resolution in southern margin of Tarim Basin, this paper has r
The formation of sand wave is such a process in which the roughness and discontinuity of the original bed surface cause the disturbance of the bottom laminar fl
The principle of a CAD method of converting the pre-designed figures in image form into complex dobby weaves with the appearances similar to the original figures is mainly introduced in this paper. A
论述石家庄 -五台山旅游通道 ,探讨以西柏坡旅游区为中心的石家庄西部旅游资源开发
Infrared solar spectra on clear days were measured automatically by an infrared solar spectrometer (ISS) with 0.4 cm 1 resolution developed by us. A line-by-lin
Using cooling curves of K-feldspars obtained by specific40Ar/39Ar step heating procedure and multiple diffusion domain modeling (MDD model), together with resul
Illite, a distinctive kind of clay minerals of potassiumalteration within the hydrothermal alteration zone, frequently occurs at the Tongchang porphyry copper d